2 * collectd - src/collectdctl.c
3 * Copyright (C) 2010 Håkon J Dugstad Johnsen
4 * Copyright (C) 2010 Sebastian Harl
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; only version 2 of the License is applicable.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * Håkon J Dugstad Johnsen <hakon-dugstad.johnsen at telenor.com>
21 * Sebastian "tokkee" Harl <sh@tokkee.org>
37 #if NAN_STATIC_DEFAULT
39 /* #endif NAN_STATIC_DEFAULT*/
42 #define DISABLE_ISOC99 1
43 #define __USE_ISOC99 1
44 #endif /* !defined(__USE_ISOC99) */
49 #endif /* DISABLE_ISOC99 */
50 /* #endif NAN_STATIC_ISOC */
56 #define NAN (0.0 / 0.0)
58 #define isnan(f) ((f) != (f))
59 #endif /* !defined(isnan) */
61 #define isfinite(f) (((f) - (f)) == 0.0)
64 #define isinf(f) (!isfinite(f) && !isnan(f))
66 #endif /* NAN_ZERO_ZERO */
68 #include "libcollectdclient/collectd/client.h"
71 #define PREFIX "/opt/" PACKAGE_NAME
75 #define LOCALSTATEDIR PREFIX "/var"
78 #define DEFAULT_SOCK LOCALSTATEDIR "/run/" PACKAGE_NAME "-unixsock"
83 __attribute__((noreturn)) static void exit_usage(const char *name, int status) {
85 (status == 0) ? stdout : stderr,
86 "Usage: %s [options] <command> [cmd options]\n\n"
88 "Available options:\n"
89 " -s Path to collectd's UNIX socket.\n"
90 " Default: " DEFAULT_SOCK "\n"
92 "\n -h Display this help and exit.\n"
94 "\nAvailable commands:\n\n"
96 " * getval <identifier>\n"
97 " * flush [timeout=<seconds>] [plugin=<name>] [identifier=<id>]\n"
99 " * putval <identifier> [interval=<seconds>] <value-list(s)>\n"
103 "An identifier has the following format:\n\n"
105 " [<hostname>/]<plugin>[-<plugin_instance>]/<type>[-<type_instance>]\n\n"
107 "Hostname defaults to the local hostname if omitted (e.g., "
109 "No error is returned if the specified identifier does not exist.\n"
111 "\n" PACKAGE_NAME " " PACKAGE_VERSION ", http://collectd.org/\n"
112 "by Florian octo Forster <octo@collectd.org>\n"
113 "for contributions see `AUTHORS'\n",
118 /* Count the number of occurrences of the character 'chr'
119 * in the specified string. */
120 static int count_chars(const char *str, char chr) {
123 while (*str != '\0') {
133 static int array_grow(void **array, size_t *array_len, size_t elem_size) {
136 assert((array != NULL) && (array_len != NULL));
138 tmp = realloc(*array, (*array_len + 1) * elem_size);
140 fprintf(stderr, "ERROR: Failed to allocate memory.\n");
149 static int parse_identifier(lcc_connection_t *c, const char *value,
150 lcc_identifier_t *ident) {
152 char ident_str[1024] = "";
157 n_slashes = count_chars(value, '/');
158 if (n_slashes == 1) {
159 /* The user has omitted the hostname part of the identifier
160 * (there is only one '/' in the identifier)
161 * Let's add the local hostname */
162 if (gethostname(hostname, sizeof(hostname)) != 0) {
163 fprintf(stderr, "ERROR: Failed to get local hostname: %s",
167 hostname[sizeof(hostname) - 1] = '\0';
169 snprintf(ident_str, sizeof(ident_str), "%s/%s", hostname, value);
170 ident_str[sizeof(ident_str) - 1] = '\0';
172 strncpy(ident_str, value, sizeof(ident_str));
173 ident_str[sizeof(ident_str) - 1] = '\0';
176 status = lcc_string_to_identifier(c, ident, ident_str);
178 fprintf(stderr, "ERROR: Failed to parse identifier ``%s'': %s.\n",
179 ident_str, lcc_strerror(c));
183 } /* parse_identifier */
185 static int getval(lcc_connection_t *c, int argc, char **argv) {
186 lcc_identifier_t ident;
188 size_t ret_values_num = 0;
189 gauge_t *ret_values = NULL;
190 char **ret_values_names = NULL;
194 assert(strcasecmp(argv[0], "getval") == 0);
197 fprintf(stderr, "ERROR: getval: Missing identifier.\n");
201 status = parse_identifier(c, argv[1], &ident);
205 #define BAIL_OUT(s) \
207 if (ret_values != NULL) \
209 if (ret_values_names != NULL) { \
210 for (size_t i = 0; i < ret_values_num; ++i) \
211 free(ret_values_names[i]); \
212 free(ret_values_names); \
214 ret_values_num = 0; \
219 lcc_getval(c, &ident, &ret_values_num, &ret_values, &ret_values_names);
221 fprintf(stderr, "ERROR: %s\n", lcc_strerror(c));
225 for (size_t i = 0; i < ret_values_num; ++i)
226 printf("%s=%e\n", ret_values_names[i], ret_values[i]);
231 static int flush(lcc_connection_t *c, int argc, char **argv) {
234 lcc_identifier_t *identifiers = NULL;
235 size_t identifiers_num = 0;
237 char **plugins = NULL;
238 size_t plugins_num = 0;
242 assert(strcasecmp(argv[0], "flush") == 0);
244 #define BAIL_OUT(s) \
246 if (identifiers != NULL) \
248 identifiers_num = 0; \
249 if (plugins != NULL) \
255 for (int i = 1; i < argc; ++i) {
259 value = strchr(argv[i], (int)'=');
262 fprintf(stderr, "ERROR: flush: Invalid option ``%s''.\n", argv[i]);
269 if (strcasecmp(key, "timeout") == 0) {
272 timeout = (int)strtol(value, &endptr, 0);
274 if (endptr == value) {
275 fprintf(stderr, "ERROR: Failed to parse timeout as number: %s.\n",
278 } else if ((endptr != NULL) && (*endptr != '\0')) {
279 fprintf(stderr, "WARNING: Ignoring trailing garbage after timeout: "
283 } else if (strcasecmp(key, "plugin") == 0) {
284 status = array_grow((void *)&plugins, &plugins_num, sizeof(*plugins));
288 plugins[plugins_num - 1] = value;
289 } else if (strcasecmp(key, "identifier") == 0) {
290 status = array_grow((void *)&identifiers, &identifiers_num,
291 sizeof(*identifiers));
295 memset(identifiers + (identifiers_num - 1), 0, sizeof(*identifiers));
296 status = parse_identifier(c, value, identifiers + (identifiers_num - 1));
300 fprintf(stderr, "ERROR: flush: Unknown option `%s'.\n", key);
305 if (plugins_num == 0) {
306 status = array_grow((void *)&plugins, &plugins_num, sizeof(*plugins));
310 assert(plugins_num == 1);
314 for (size_t i = 0; i < plugins_num; ++i) {
315 if (identifiers_num == 0) {
316 status = lcc_flush(c, plugins[i], NULL, timeout);
318 fprintf(stderr, "ERROR: Failed to flush plugin `%s': %s.\n",
319 (plugins[i] == NULL) ? "(all)" : plugins[i], lcc_strerror(c));
321 for (size_t j = 0; j < identifiers_num; ++j) {
322 status = lcc_flush(c, plugins[i], identifiers + j, timeout);
326 lcc_identifier_to_string(c, id, sizeof(id), identifiers + j);
327 fprintf(stderr, "ERROR: Failed to flush plugin `%s', "
328 "identifier `%s': %s.\n",
329 (plugins[i] == NULL) ? "(all)" : plugins[i], id,
340 static int listval(lcc_connection_t *c, int argc, char **argv) {
341 lcc_identifier_t *ret_ident = NULL;
342 size_t ret_ident_num = 0;
346 assert(strcasecmp(argv[0], "listval") == 0);
349 fprintf(stderr, "ERROR: listval: Does not accept any arguments.\n");
353 #define BAIL_OUT(s) \
355 if (ret_ident != NULL) \
361 status = lcc_listval(c, &ret_ident, &ret_ident_num);
363 fprintf(stderr, "ERROR: %s\n", lcc_strerror(c));
367 for (size_t i = 0; i < ret_ident_num; ++i) {
370 status = lcc_identifier_to_string(c, id, sizeof(id), ret_ident + i);
372 fprintf(stderr, "ERROR: listval: Failed to convert returned "
373 "identifier to a string: %s\n",
384 static int putval(lcc_connection_t *c, int argc, char **argv) {
385 lcc_value_list_t vl = LCC_VALUE_LIST_INIT;
387 /* 64 ought to be enough for anybody ;-) */
389 int values_types[64];
390 size_t values_len = 0;
394 assert(strcasecmp(argv[0], "putval") == 0);
397 fprintf(stderr, "ERROR: putval: Missing identifier "
398 "and/or value list.\n");
403 vl.values_types = values_types;
405 status = parse_identifier(c, argv[1], &vl.identifier);
409 for (int i = 2; i < argc; ++i) {
412 tmp = strchr(argv[i], (int)'=');
414 if (tmp != NULL) { /* option */
421 if (strcasecmp(key, "interval") == 0) {
424 vl.interval = strtol(value, &endptr, 0);
426 if (endptr == value) {
427 fprintf(stderr, "ERROR: Failed to parse interval as number: %s.\n",
430 } else if ((endptr != NULL) && (*endptr != '\0')) {
431 fprintf(stderr, "WARNING: Ignoring trailing garbage after "
436 fprintf(stderr, "ERROR: putval: Unknown option `%s'.\n", key);
439 } else { /* value list */
442 tmp = strchr(argv[i], (int)':');
445 fprintf(stderr, "ERROR: putval: Invalid value list: %s.\n", argv[i]);
452 if (strcasecmp(argv[i], "N") == 0) {
457 vl.time = strtol(argv[i], &endptr, 0);
459 if (endptr == argv[i]) {
460 fprintf(stderr, "ERROR: Failed to parse time as number: %s.\n",
463 } else if ((endptr != NULL) && (*endptr != '\0')) {
464 fprintf(stderr, "ERROR: Garbage after time: %s.\n", endptr);
471 while (value != NULL) {
474 tmp = strchr(value, (int)':');
481 /* This is a bit of a hack, but parsing types.db just does not make
482 * much sense imho -- the server might have different types defined
483 * anyway. Also, lcc uses the type information for formatting the
484 * number only, so the real meaning does not matter. -tokkee */
485 dot = strchr(value, (int)'.');
487 if (strcasecmp(value, "U") == 0) {
488 values[values_len].gauge = NAN;
489 values_types[values_len] = LCC_TYPE_GAUGE;
490 } else if (dot) { /* floating point value */
491 values[values_len].gauge = strtod(value, &endptr);
492 values_types[values_len] = LCC_TYPE_GAUGE;
493 } else { /* integer */
494 values[values_len].counter = (counter_t)strtoull(value, &endptr, 0);
495 values_types[values_len] = LCC_TYPE_COUNTER;
499 if (endptr == value) {
500 fprintf(stderr, "ERROR: Failed to parse value as number: %s.\n",
503 } else if ((endptr != NULL) && (*endptr != '\0')) {
504 fprintf(stderr, "ERROR: Garbage after value: %s.\n", endptr);
511 assert(values_len >= 1);
512 vl.values_len = values_len;
514 status = lcc_putval(c, &vl);
516 fprintf(stderr, "ERROR: %s\n", lcc_strerror(c));
522 if (values_len == 0) {
523 fprintf(stderr, "ERROR: putval: Missing value list(s).\n");
529 int main(int argc, char **argv) {
530 char address[1024] = "unix:" DEFAULT_SOCK;
539 opt = getopt(argc, argv, "s:h");
546 snprintf(address, sizeof(address), "unix:%s", optarg);
547 address[sizeof(address) - 1] = '\0';
550 exit_usage(argv[0], 0);
552 exit_usage(argv[0], 1);
556 if (optind >= argc) {
557 fprintf(stderr, "%s: missing command\n", argv[0]);
558 exit_usage(argv[0], 1);
562 status = lcc_connect(address, &c);
564 fprintf(stderr, "ERROR: Failed to connect to daemon at %s: %s.\n", address,
569 if (strcasecmp(argv[optind], "getval") == 0)
570 status = getval(c, argc - optind, argv + optind);
571 else if (strcasecmp(argv[optind], "flush") == 0)
572 status = flush(c, argc - optind, argv + optind);
573 else if (strcasecmp(argv[optind], "listval") == 0)
574 status = listval(c, argc - optind, argv + optind);
575 else if (strcasecmp(argv[optind], "putval") == 0)
576 status = putval(c, argc - optind, argv + optind);
578 fprintf(stderr, "%s: invalid command: %s\n", argv[0], argv[optind]);
589 /* vim: set sw=2 ts=2 tw=78 expandtab : */